via: allow for npot texture pitch alignment

Signed-off-by: Dave Airlie <airlied@linux.ie>

1 files changed, 21 insertions, 9 deletions

diff --git a/drivers/char/drm/via_verifier.c b/drivers/char/drm/via_verifier.c
index 24fc7cb6e7da..2e7e08078287 100644
--- a/drivers/char/drm/via_verifier.c
+++ b/drivers/char/drm/via_verifier.c
@@ -306,6 +306,7 @@ static __inline__ int finish_current_sequence(drm_via_state_t * cur_seq)
                         unsigned long lo = ~0, hi = 0, tmp;
                         uint32_t *addr, *pitch, *height, tex;
                         unsigned i;
+                        int npot;
 
                         if (end > 9)
                                 end = 9;
@@ -316,12 +317,15 @@ static __inline__ int finish_current_sequence(drm_via_state_t * cur_seq)
                             &(cur_seq->t_addr[tex = cur_seq->texture][start]);
                         pitch = &(cur_seq->pitch[tex][start]);
                         height = &(cur_seq->height[tex][start]);
-
+                        npot = cur_seq->tex_npot[tex];
                         for (i = start; i <= end; ++i) {
                                 tmp = *addr++;
                                 if (tmp < lo)
                                         lo = tmp;
-                                tmp += (*height++ << *pitch++);
+                                if (i == 0 && npot)
+                                        tmp += (*height++ * *pitch++);
+                                else
+                                        tmp += (*height++ << *pitch++);
                                 if (tmp > hi)
                                         hi = tmp;
                         }
@@ -443,13 +447,21 @@ investigate_hazard(uint32_t cmd, hazard_t hz, drm_via_state_t * cur_seq)
                 return 0;
         case check_texture_addr3:
                 cur_seq->unfinished = tex_address;
-                tmp = ((cmd >> 24) - 0x2B);
-                cur_seq->pitch[cur_seq->texture][tmp] =
-                    (cmd & 0x00F00000) >> 20;
-                if (!tmp && (cmd & 0x000FFFFF)) {
-                        DRM_ERROR
-                            ("Unimplemented texture level 0 pitch mode.\n");
-                        return 2;
+                tmp = ((cmd >> 24) - HC_SubA_HTXnL0Pit);
+                if (tmp == 0 &&
+                    (cmd & HC_HTXnEnPit_MASK)) {
+                        cur_seq->pitch[cur_seq->texture][tmp] =
+                                (cmd & HC_HTXnLnPit_MASK);
+                        cur_seq->tex_npot[cur_seq->texture] = 1;
+                } else {
+                        cur_seq->pitch[cur_seq->texture][tmp] =
+                                (cmd & HC_HTXnLnPitE_MASK) >> HC_HTXnLnPitE_SHIFT;
+                        cur_seq->tex_npot[cur_seq->texture] = 0;
+                        if (cmd & 0x000FFFFF) {
+                                DRM_ERROR
+                                        ("Unimplemented texture level 0 pitch mode.\n");
+                                return 2;
+                        }
                 }
                 return 0;
         case check_texture_addr4: